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To add or subtract fractions, they must have the same denominator. If they do not, make the least common multiple of all of the denominators the new denominator. After adding or subtracting, reduce your answer.
When giving the fractions like denominators, whatever number you multiply the old denominator of a fraction by, you must also multiply it by the numerator.

Example of subtracting fractions with unlike denominators | Addition ...

If you conquered adding fractions with different denominators, then subtracting fractions will be a snap. Don't worry...we'll take it slow and explain every step.

Subtracting fractions with unlike denominators - Khan Academy

Practice subtracting fractions that have different denominators.

Subtracting fractions with unlike denominators - Khan Academy

Sal subtracts fractions like 4/3 and 1/5. ... Practice: Visually add and subtract fractions · Adding fractions ... Subtracting fractions with unlike denominators. About ...

Subtracting Fractions - Math is Fun

www.mathsisfun.com/fractions_subtraction.html

There are 3 simple steps to subtract fractions. Step 1. Make sure the bottom numbers (the denominators) are the same; Step 2. Subtract the top numbers (the  ...

Subtract Two Fractions - WebMath

www.webmath.com/subfract.html

This page will show you how to subtract fractions. Choose the form that best matches your problem, and fill in it. Only fill in one of the three forms, please.

Subtracting Fractions With Different Denominators

www.helpwithfractions.com/subtracting-fractions/subtracting-fractions-different-denominators/

Sep 2, 2014 ... When subtracting fractions with different denominators, we follow the same process we used for adding unlike fractions.